JPH01234347A - Electrically conductive structure - Google Patents
Electrically conductive structureInfo
- Publication number
- JPH01234347A JPH01234347A JP6135688A JP6135688A JPH01234347A JP H01234347 A JPH01234347 A JP H01234347A JP 6135688 A JP6135688 A JP 6135688A JP 6135688 A JP6135688 A JP 6135688A JP H01234347 A JPH01234347 A JP H01234347A
- Authority
- JP
- Japan
- Prior art keywords
- carbon black
- carbon fiber
- conductive carbon
- conductive
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 84
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 63
- 239000004917 carbon fiber Substances 0.000 claims abstract description 63
- 239000004568 cement Substances 0.000 claims abstract description 10
- 239000006229 carbon black Substances 0.000 abstract 2
- 241000282320 Panthera leo Species 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 230000002195 synergetic effect Effects 0.000 description 5
- 239000006185 dispersion Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 125000000129 anionic group Chemical group 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920002239 polyacrylonitrile Polymers 0.000 description 2
- 239000012779 reinforcing material Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000011398 Portland cement Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 235000010981 methylcellulose Nutrition 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/90—Electrical properties
- C04B2111/94—Electrically conducting materials
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、セメントに炭素繊維を含有して固化したモル
タルとかコンクリートなどの導電性構造体に関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a conductive structure such as mortar or concrete made by solidifying cement containing carbon fibers.
〈従来の技術〉
近年では、セメントに炭素繊維を混入することにより、
この炭素繊維を補強材として強度の高いモルタルやコン
クリートの構造体が得られるようになってきている。ま
た、コンクリートの導電性を向上させるために、コンク
リート中に炭素繊維を混入することは公知であり、炭素
繊維を多く入れると導電性は良くなる。<Conventional technology> In recent years, by mixing carbon fiber into cement,
It has become possible to obtain strong mortar and concrete structures using carbon fiber as a reinforcing material. Furthermore, it is known to mix carbon fibers into concrete in order to improve the conductivity of concrete, and the more carbon fibers are added, the better the conductivity becomes.
〈発明が解決しようとする課題〉
しかしながら、炭素繊維の混入量を増加していっても、
導電性の向上には限界があって、ある値以上の導電性は
得られない。<Problem to be solved by the invention> However, even if the amount of carbon fiber mixed in is increased,
There is a limit to the improvement of conductivity, and conductivity above a certain value cannot be obtained.
更に、多量の炭素繊維を混入することは、炭素繊維がブ
ロック化するために困難であり、また、炭素繊維が高価
なために、全体としてコスト高になる欠点があった。Furthermore, it is difficult to mix a large amount of carbon fibers because the carbon fibers form blocks, and since carbon fibers are expensive, there is a drawback that the overall cost is high.
本発明は、このような事情に鑑みてなされたものであっ
て、炭素繊維の混入量を少な（して安価に導電性を向上
できるようにすることを目的とする。The present invention has been made in view of the above circumstances, and an object of the present invention is to reduce the amount of carbon fiber mixed in and thereby improve conductivity at low cost.
く課題を解決するための手段〉
本発明は、このような目的を達成するために、冒頭に記
載した導電性構造体において、導電性カーボンブラック
を含有したことを特徴としている。Means for Solving the Problems> In order to achieve the above object, the present invention is characterized in that the conductive structure described at the beginning contains conductive carbon black.
く作用〉
導電性を高めるために炭素繊維のみを混入し、その混入
量を増加していっても、導電性はある値以上にはならな
い（第４図参照）。Effects> Even if only carbon fiber is mixed in to increase the conductivity and the amount of carbon fiber added is increased, the conductivity will not exceed a certain value (see Figure 4).
一方、導電性カーボンブラックのみで導電性を高めるた
めに大量の導電性カーボンブラックを混入すると成形体
の強度が低下し、また、その混入量をより一層増加する
と、流動性が失われて目的の成形体を作ることもできな
くなる。On the other hand, if a large amount of conductive carbon black is mixed in to increase conductivity using only conductive carbon black, the strength of the molded product will decrease, and if the amount of conductive carbon black added is further increased, fluidity will be lost and the desired It also becomes impossible to make molded objects.
しかして、本発明の構成によれば、導電性カーボンブラ
ックを含有することにより、その導電性カーボンブラッ
クと炭素繊維との相乗効果により、炭素繊維または導電
性カーボンブラックそれぞれのみを含有した状態では得
られない導電性を付与する。According to the structure of the present invention, by containing the conductive carbon black, the synergistic effect of the conductive carbon black and the carbon fibers makes it possible to obtain the desired results by containing only the carbon fibers or the conductive carbon black. Provides electrical conductivity that cannot be avoided.
〈実施例〉
次に、本発明の実施例を図面に基づいて詳細に説明する
。<Example> Next, an example of the present invention will be described in detail based on the drawings.
ピ・７チ系炭素繊維（公称引っ張り強さ７０ｋｇ／ｍｍ
” ）５０ｇに、ポルトランドセメント２０００ｇ 、
骨材としての珪砂１０００．を加え、オムニミキサーで
１分間混合する。そのオムニミキサーの中に、ケンチェ
ンブランクＥＣ（オランダＡＫＺＯ社製）を分散したノ
ニオン性の導電性カーボンブラック水分散液ライオンペ
ーストＷ−３１１Ｎ（ライオン株式会社製、表面積［Ｂ
ＥＴ］が８００ポ／ｇで粒子径が２０〜３０ ｍμ）
５８８ｇ （導電性カーボンブラックを５８８ｇＸ０．
０８５ｗｔ％＝’５０ｇ含む）と混和剤メチルセルロー
ス１２ｇを水５１２ｇに溶かした溶液を加え、更に、３
分間オムニミキサーで混合する。これを型枠の中に流し
込んで養生固化し、４０ Ｘ ４０ Ｘ ３０ｍｍのブ
ロックを作製する。Pi-7chi carbon fiber (nominal tensile strength 70kg/mm
) 50g, 2000g of Portland cement,
Silica sand as aggregate 1000. Add and mix for 1 minute with an omni mixer. In the omni-mixer, a nonionic conductive carbon black aqueous dispersion Lion Paste W-311N (manufactured by Lion Corporation, surface area [B
ET] is 800 po/g and the particle size is 20-30 mμ).
588g (588g of conductive carbon black x 0.
085wt%='50g) and a solution of 12g of admixture methyl cellulose dissolved in 512g of water, and then
Mix in an omni mixer for a minute. This is poured into a mold and cured to harden to produce a block of 40 x 40 x 30 mm.
また、炭素繊維と導電性カーボンブラックとの合計重量
が１００ｇになるように、炭素繊維の重量を、１００ｇ
、８３ｇ、６６ｇ、３４ｇ、Ｏｇと変更し、前述の場合
と同様にして４０ Ｘ ４０ Ｘ ８０１１１１１のブ
ロックを作製する。In addition, the weight of the carbon fiber was adjusted to 100 g so that the total weight of the carbon fiber and conductive carbon black was 100 g.
, 83g, 66g, 34g, Og, and produce a block of 40 x 40 x 8011111 in the same manner as in the above case.
その後、第１図に示すように、上述のようにして得られ
たブロックｌの両端それぞれに、４０ Ｘ ５６ｍｍの
銅）反２．２をドータイト（タイプＤ−５５０：藤倉化
成株式会社製）で接着し、デジタル・マルチメーターＴ
Ｒ６８７７（アトパンテスト社製）を用いて体積固有抵
抗値（Ω・ｃｍ）を測定したところ、第２図のグラフに
おいて黒丸（・）で示す結果を得た。Thereafter, as shown in Figure 1, a 40 x 56 mm piece of dotite (type D-550, manufactured by Fujikura Kasei Co., Ltd.) was applied to each of both ends of the block l obtained as described above. Glue and digital multimeter T
When the volume resistivity value (Ω·cm) was measured using R6877 (manufactured by Atopan Test Co., Ltd.), results indicated by black circles (·) in the graph of FIG. 2 were obtained.
また、炭素繊維と導電性カーボンブラックとの合計重量
が６０ｇになるように、かつ、炭素繊維の含有率を５０
％にし、それ以外は前述の場合と同じ条件で試験体を作
製し、その試験体について、前述同様にして体積固有抵
抗値を測定したところ、第２図のグラフにおいて黒三角
（ム）で示す結果を得た。In addition, the total weight of carbon fiber and conductive carbon black was 60 g, and the content of carbon fiber was 50 g.
%, and other than that, a test piece was prepared under the same conditions as above, and the volume resistivity value of the test piece was measured in the same manner as above. Got the results.
また、炭素繊維と導電性カーボンブラックとの合計重量
が８０ｇになるように、かつ、炭素繊維の含有率を５０
％にし、それ以外は前述の場合と同し条件で試験体を作
製し、その試験体について、前述同様にして体積固有抵
抗値を測定したところ、第２図のグラフにおいて白玉角
（△）で示す結果を得た。In addition, the total weight of carbon fiber and conductive carbon black was 80 g, and the content of carbon fiber was 50 g.
%, and other than that, a test piece was prepared under the same conditions as above, and the volume resistivity value of the test piece was measured in the same manner as above. In the graph of Figure 2, the square ball angle (△) The following results were obtained.
また、炭素繊維と導電性カーボンブラックとの合計重量
が１２０ｇになるように、かつ、炭素繊維の含有率を５
０％にし、それ以外は前述の場合と同じ条件で試験体を
作製し、その試験体について、前述同様にして体積固有
抵抗値を測定したところ、第２図のグラフにおいて白丸
（○）で示す結果を得た。In addition, the total weight of carbon fiber and conductive carbon black was 120 g, and the content of carbon fiber was 5.
0%, and otherwise prepared a test piece under the same conditions as above, and measured the volume resistivity value of the test piece in the same manner as above, which is shown as a white circle (○) in the graph of Figure 2. Got the results.
更に、炭素繊維と導電性カーボンブラックとを等量づつ
、即ち、炭素繊維の含有率を５０％にし、それ以外は前
述の場合と同じ条件にして、炭素繊維と導電性カーボン
ブラックの合計重量を変えながら試験体を作製し、その
試験体について、前述同様にして体積固有抵抗値を測定
したところ、第３図のグラフに示す結果を得た。Furthermore, equal amounts of carbon fiber and conductive carbon black were used, that is, the content of carbon fiber was 50%, and the other conditions were the same as in the previous case, and the total weight of carbon fiber and conductive carbon black was Test specimens were prepared while changing the conditions, and the volume resistivity values of the test specimens were measured in the same manner as described above, and the results shown in the graph of FIG. 3 were obtained.
これに対して、炭素繊維のみを用い、それ以外は前述の
場合と同じ条件にして、炭素繊維の重量を変えながら試
験体を作製し、その試験体について、前述同様にして体
積固有抵抗値を測定したところ、第４図のグラフに示す
結果を得た。On the other hand, test specimens were prepared using only carbon fibers and the other conditions were the same as in the previous case, while changing the weight of the carbon fibers. As a result of the measurement, the results shown in the graph of FIG. 4 were obtained.
また、前述の導電性カーボンブラック水分散液ライオン
ペーストＷ−３１１Ｎ（ライオン株式会社製）のみを用
い、それ以外は前述の場合と同し条件にして、導電性カ
ーボンブラックの重量を変えながら試験体を作製し、そ
の試験体について、前述同様にして体積固有抵抗値を測
定したところ、第５図のグラフに示す結果を得た。In addition, using only the aforementioned conductive carbon black aqueous dispersion Lion Paste W-311N (manufactured by Lion Corporation) and under the same conditions as above, test specimens were prepared while changing the weight of the conductive carbon black. was prepared, and the volume resistivity value of the test specimen was measured in the same manner as described above, and the results shown in the graph of FIG. 5 were obtained.
また、別のアニオン性の導電性カーボンブラック水分散
液ライオンペーストＷ−３１０Ａ（ライオン株式会社製
）のみを用い、それ以外は前述の場合と同じ条件にして
、導電性カーボンブラックの重量を変えながら試験体を
作製し、その試験体について、前述同様にして体積固有
抵抗値を測定したところ、第６図のグラフに示す結果を
得た。In addition, using only another anionic conductive carbon black aqueous dispersion Lion Paste W-310A (manufactured by Lion Corporation), the other conditions were the same as in the previous case, while changing the weight of the conductive carbon black. A test piece was prepared, and the volume resistivity value of the test piece was measured in the same manner as described above, and the results shown in the graph of FIG. 6 were obtained.
以上の結果から、次のことが明らかであった。From the above results, the following was clear.
即ち、炭素繊維のみ、等量づつの炭素繊維と導電性カー
ボンブラック、導電性カーボンブラックのみそれぞれを
１００ｇ含有した場合を取り上げて説明すれば、炭素繊
維のみの場合の体積面を抵抗値ρは、第４図に示すよう
に（Ｐ２）、ｊ！ｏｇρ＝約１．９Ω・Ｃ１１であり、
一方の導電性カーボンブラックのみの場合の体積固有抵
抗値は、第５閏に示すように（Ｐ ３ ） 、ｌｏｇｐ
＝約１．３３Ω’ａｎであり、他方の導電性カーボン
ブラックのみの場合の体積固有抵抗値は、第６図に示す
ように（Ｐ４）、ｆｆｉｏｇρ−約２．１５Ω・印であ
り、そして、等量づつの炭素繊維と導電性カーボンブラ
ックの場合の体積固有抵抗値は、第３図に示すように（
ＰＩ）、ｆｏｇρ＝約１．０Ω・ｃｍであり、本発明に
よれば、炭素繊維と導電性カーボンブラックとの相乗効
果によって、少量であっても、体積固有抵抗値をより一
層低下できていること、即ち、導電性を向上できている
ことが明らかである。That is, to explain the case where carbon fiber alone, equal amounts of carbon fiber and conductive carbon black, and conductive carbon black alone are contained in an amount of 100 g each, the resistance value ρ in terms of volume in the case of only carbon fiber is: As shown in FIG. 4 (P2), j! ogρ=about 1.9Ω・C11,
The volume resistivity value in the case of only one conductive carbon black is (P 3 ), logp
= approximately 1.33Ω'an, and the volume resistivity value in the case of only the other conductive carbon black is ffiogρ−approximately 2.15Ω·mark, as shown in FIG. 6 (P4), and, The volume resistivity value in the case of equal amounts of carbon fiber and conductive carbon black is as shown in Figure 3 (
PI), fogρ=approximately 1.0 Ω・cm, and according to the present invention, the volume resistivity value can be further reduced even in a small amount due to the synergistic effect of carbon fiber and conductive carbon black. In other words, it is clear that the conductivity can be improved.
また、炭素繊維のみの場合であれば、第４図に示すよう
に、セメント２０００ｇに対して、炭素繊維を１００ｇ
以上増量して含有させても、体積固有抵抗値を有効に低
下できなくなり、また、一方の導電性カーボンブラック
のみの場合にあっても、第５図に示すように、同様に、
導電性カーボンブラックを１００ｇ以上増量して含有さ
せても、体積固有抵抗値を有効に低下できなくなり、更
に、他方の導電性カーボンブラックのみの場合でも、第
６図に示すように、導電性カーボンブラックを１６０ｇ
以上増量して含有させても、体積固有抵抗値を有効に低
下できなくなる。In addition, if only carbon fiber is used, as shown in Figure 4, 100g of carbon fiber is added to 2000g of cement.
Even if the amount of conductive carbon black is increased, the volume resistivity cannot be effectively lowered, and even if only one type of conductive carbon black is used, as shown in FIG.
Even if the amount of conductive carbon black is increased by 100 g or more, the volume resistivity value cannot be effectively lowered. 160g black
Even if it is contained in an increased amount, the volume resistivity value cannot be effectively lowered.
これに対して、本発明によれば、炭素繊維と導電性カー
ボンブラックとの相乗効果によって、１２０ｇ以上増量
して含有させても、体積固有抵抗値を有効に低下でき、
炭素繊維のみ、または、導電性カーボンブラックのみで
は達成できない導電性を得られることが明らかであった
。On the other hand, according to the present invention, due to the synergistic effect of carbon fiber and conductive carbon black, the volume resistivity value can be effectively reduced even if the amount is increased by 120 g or more.
It was clear that conductivity that could not be achieved with carbon fiber alone or conductive carbon black alone could be obtained.
また、以上のこと、ならびに、第２図に示される結果か
ら、セメントに含有する炭素繊維と導電性カーボンブラ
ックとの合計重量が２ｗｔ％以上、１０ｗｔ％以下、よ
り好ましくは２ｗｔ％以上、５ｗｔ％以下のときに、好
適な結果が得られる。合計重量が２１１ｔ％未満では相
乗効果が少ないし、１０ｗｔ％を越えると成形が難しく
なる。混入量が１０−１％に近づくほど炭素繊維の長さ
を短くすることが好ましい。更に、導電性カーボンブラ
ックの含有重量が炭素繊維の重量の０．１〜９倍である
ときに好適な結果を得ることができ、そして、０．５〜
５倍のときにより一層好適な結果が得られていることが
明らかであった。In addition, from the above and the results shown in Figure 2, it is clear that the total weight of carbon fibers and conductive carbon black contained in cement is 2 wt% or more and 10 wt% or less, more preferably 2 wt% or more and 5 wt%. Favorable results are obtained when: If the total weight is less than 211 t%, there will be little synergistic effect, and if it exceeds 10 wt%, molding will become difficult. It is preferable to reduce the length of the carbon fibers as the amount of the carbon fibers approaches 10-1%. Further, suitable results can be obtained when the content weight of the conductive carbon black is 0.1 to 9 times the weight of the carbon fiber, and 0.5 to 9 times the weight of the carbon fiber.
It was clear that even more favorable results were obtained when the magnification was increased by 5 times.
本発明に用いられる炭素繊維としては、ピッチ系やポリ
アクリロニトリル（ＰＡＮ）系、レイヨン系など、各種
の炭素繊維が適用できる。Various carbon fibers such as pitch-based, polyacrylonitrile (PAN)-based, and rayon-based carbon fibers can be used as the carbon fibers used in the present invention.
また、本発明に用いられる導電性カーボンブラックとし
ては、前述したアニオン性の導電性カーボンブラックに
も適用できる。Further, as the conductive carbon black used in the present invention, the above-mentioned anionic conductive carbon black can also be applied.
また、上記実施例では、炭素繊維と導電性カーボンブラ
ックとを、セメントと骨材としての珪砂に含有して固化
したモルタル構造体について説明したが、粗骨材を加え
たコンクリート構造体にも適用でき、その場合でも上述
実施例と同様の結果を得ることができる。In addition, in the above example, a mortar structure in which carbon fibers and conductive carbon black are contained in cement and silica sand as an aggregate and solidified was explained, but it can also be applied to a concrete structure in which coarse aggregate is added. Even in that case, the same results as in the above embodiment can be obtained.
〈発明の効果〉
以上の説明から明らかなように、本発明によれば、導電
性カーボンブラックと炭素繊維との相乗効果により、導
電性カーボンブラックを少量添加するだけで、炭素繊維
の混入量を大幅に減少できながら高い導電性を得ること
ができ、炭素繊維の使用量を少なくできるうえに、導電
性カーボンブラックは炭素繊維よりも安価であり、導電
性構造体を経済的に作ることができる。<Effects of the Invention> As is clear from the above description, according to the present invention, due to the synergistic effect of conductive carbon black and carbon fiber, the amount of carbon fiber mixed can be reduced by simply adding a small amount of conductive carbon black. It is possible to obtain high conductivity while reducing the amount of carbon fiber significantly, and the amount of carbon fiber used can be reduced, and conductive carbon black is cheaper than carbon fiber, making it possible to economically produce conductive structures. .
更に、炭素繊維の補強材としての効果もあり、強度が高
く、かつ、導電性の高い構造体を得ることができる。Furthermore, carbon fibers have the effect of serving as a reinforcing material, and a structure with high strength and high conductivity can be obtained.
第１図は試験体の斜視図、第２図は、炭素繊維と導電性
カーボンブラックとを混合して含有した場合の炭素繊維
の含有率と体積固有抵抗値との相関を示すグラフ、第３
図は、炭素繊維と導電性カーボンブラックとを等量づつ
混合して含有した場合の混合重量と体積固有抵抗値との
相関を示すグラフ、第４図は、炭素繊維のみを含有した
場合の含有率と体積固有抵抗値との相関を示すグラフ、
第５図および第６図は、それぞれ導電性カーボンブラッ
クのみを含有した場合の含有重量と体積固有抵抗値との
相関を示すグラフである。Figure 1 is a perspective view of the test specimen, Figure 2 is a graph showing the correlation between carbon fiber content and volume resistivity when carbon fiber and conductive carbon black are mixed, and Figure 3
The figure is a graph showing the correlation between the mixed weight and the volume resistivity value when equal amounts of carbon fiber and conductive carbon black are mixed together. A graph showing the correlation between the ratio and the volume resistivity value,
FIGS. 5 and 6 are graphs showing the correlation between the content weight and the volume resistivity value when only conductive carbon black is contained, respectively.
Claims (3)
造体であって、 導電性カーボンブラックを含有してなることを特徴とす
る導電性構造体。(1) A conductive structure made of cement containing carbon fibers and solidified, characterized by containing conductive carbon black.
の合計がセメントの重量の２％以上、１０％以下である
第（１）項記載の導電性構造体。(2) The conductive structure according to item (1), wherein the total content weight of carbon fibers and conductive carbon black is 2% or more and 10% or less of the weight of the cement.
重量の０．１〜９倍である第（１）項または第（２）項
記載の導電性構造体。(3) The conductive structure according to item (1) or item (2), wherein the content weight of the conductive carbon black is 0.1 to 9 times the weight of the carbon fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63061356A JP2542412B2 (en) | 1988-03-14 | 1988-03-14 | Conductive structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63061356A JP2542412B2 (en) | 1988-03-14 | 1988-03-14 | Conductive structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01234347A true JPH01234347A (en) | 1989-09-19 |
| JP2542412B2 JP2542412B2 (en) | 1996-10-09 |
Family
ID=13168792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63061356A Expired - Lifetime JP2542412B2 (en) | 1988-03-14 | 1988-03-14 | Conductive structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2542412B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4892638A (en) * | 1986-11-04 | 1990-01-09 | Hitachi, Ltd. | Instrument for determination of the base sequence of DNA |
| KR20030028859A (en) * | 2001-10-04 | 2003-04-11 | 주식회사 인트켐 | The cement compositions for absorbing electromagnetic waves |
| US6825444B1 (en) * | 1999-01-29 | 2004-11-30 | Board Of Regents Of University Of Nebraska | Heated bridge deck system and materials and method for constructing the same |
| KR100811802B1 (en) * | 2006-08-14 | 2008-03-10 | 박석균 | Rib materials for use in concrete reinforcing rod |
| JP2009227475A (en) * | 2008-03-19 | 2009-10-08 | Yokohama Tlo Co Ltd | Cement composition |
| WO2022189026A1 (en) * | 2021-03-12 | 2022-09-15 | Harold Scholz & Co. Gmbh | Electrically conductive building material, in particular concrete, comprising an electrically conductive additive based on carbon fibres and graphite |
| WO2022189027A1 (en) * | 2021-03-12 | 2022-09-15 | Harold Scholz & Co. Gmbh | Electrically conductive building material, in particular concrete, comprising an electrically conductive graphite-based additive |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01148738A (en) * | 1987-12-04 | 1989-06-12 | Denki Kagaku Kogyo Kk | Conductive hydraulic composition |
-
1988
- 1988-03-14 JP JP63061356A patent/JP2542412B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01148738A (en) * | 1987-12-04 | 1989-06-12 | Denki Kagaku Kogyo Kk | Conductive hydraulic composition |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4892638A (en) * | 1986-11-04 | 1990-01-09 | Hitachi, Ltd. | Instrument for determination of the base sequence of DNA |
| US6825444B1 (en) * | 1999-01-29 | 2004-11-30 | Board Of Regents Of University Of Nebraska | Heated bridge deck system and materials and method for constructing the same |
| KR20030028859A (en) * | 2001-10-04 | 2003-04-11 | 주식회사 인트켐 | The cement compositions for absorbing electromagnetic waves |
| KR100811802B1 (en) * | 2006-08-14 | 2008-03-10 | 박석균 | Rib materials for use in concrete reinforcing rod |
| JP2009227475A (en) * | 2008-03-19 | 2009-10-08 | Yokohama Tlo Co Ltd | Cement composition |
| WO2022189026A1 (en) * | 2021-03-12 | 2022-09-15 | Harold Scholz & Co. Gmbh | Electrically conductive building material, in particular concrete, comprising an electrically conductive additive based on carbon fibres and graphite |
| WO2022189027A1 (en) * | 2021-03-12 | 2022-09-15 | Harold Scholz & Co. Gmbh | Electrically conductive building material, in particular concrete, comprising an electrically conductive graphite-based additive |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2542412B2 (en) | 1996-10-09 |
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